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In page Jagiellonian University:

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For several centuries, almost the entire intellectual elite of Poland was educated at the university,[citation needed] where they enjoyed particular royal favors. While it was, and largely remains, Polish students who make up the majority of the university's students, it has, over its long history, educated thousands of foreign students from countries such as Lithuania, Russia, Hungary, Bohemia, Germany, and Spain. During the second half of the 15th century, over 40 percent of students came from the outside of the Kingdom of Poland.